Published April 29, 2010•Updated on April 29, 2010 at 5:17 pm

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Investors in Paris Hilton's 2006 box-office bomb "Pledge This!" claim she owes $1 million in restitution for supposedly not promoting the movie enough.

The investors asked a Miami federal judge Thursday to force Hilton to repay her fee from the film. They contend she ignored at least nine requests for interviews and other promotion events in violation of her contract.

Hilton's attorney says she did everything required of her and owes nothing. Hilton was not in court Thursday, but testified last summer that she met her promotion obligations.

U.S. District Judge Federico Moreno previously rejected the investors' effort to sue Hilton for $8.3 million in damages. Moreno did not indicate when he would rule on the restitution issue.